LEDs are lightweight and power-saving and have high durability and a long life, among other features. The earliest applications were for alarm and advertising; but, especially since high-brightness SMD LEDs became practical, the penetration rate has increased rapidly as LEDs began to be used for indoor and outdoor lighting, as well as backlighting for monitors, televisions, and mobile phones. SDI Corporation focuses on long life and durability, using mold processing technology, 3D design capability, and product design knowledge to provide our customers with complete solutions.